Tire-tool.



M. H. STEWART.

TIRE TOOL.

' APPLICATION IILIID NOV. 20. I914. 1,183,690. Patented May 16, 1916.

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W/T/VESSES Z/I/VE/VTOR M. H. STEWART.

TIRE TOOL.

' I APPLICATION FILED NOV. 20. 19M. 1,183,690. r Patented Maylfi, 1916..I 2 ssssssssssss 2.

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MILTON H. STEWART, OF DETROIT, MICHIGAN.

TIRE-TOOL.

Application filed November 20, 1914.

To all whom it may concern:

Be it known that I, MILTON H. STEWART, a citizen of the United States,residing at Detroit, in the county of Wayne, State of Michigan, haveinvented certain new and useful Improvements in Tire-Tools; and I dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the characters of reference markedthereon, which form a part of this specification.

This invention relates to a device especially designed and adapted foradjusting tire casings, of the clencher type, upon the rims of vehiclewheels, and consists in the novel construction and arrangement ashereinafter fully set forth and claimed.

The invention has for its object the provision of a simple and efficienttool for use in the operations of applying tire casings to the rims ofwheels and for removing them therefrom, by which the manual exertionusually attending such work is minimized and the accomplishment of thetask is facilitated in a safe and rapid manner.

Further advantages in the use of the invention are attained by the noveltwo-piece construction of the tool, in which the parts are madedetachable and adapted for cooperative use in manipulating the tire forpositioning the tool thereon preparatory to the operation of removal orreplacement, as well as providing a fulcrum bearing with the hub of thewheel or a bearing support with the ground, where the hub is notaccessible, as in wire wheels, to afiOId a suitable anchorage for thetool and enable the completion of the operation with comparative ease byimparting a rotative movement to the wheel.

The preferred embodiment of the present invention is comprised in theconstruction illustrated in the accompanying drawings, in which:

Figure l is a side elevation of the body portion of the tool. Fig. 2 isan edge elevation of Fig. 1, having a. portion of the shank or upper endbroken away to show the socket and transverse aperture formed therein.Fig. 3 is a side elevation of a detachable extension for the bodyportion, adapted to serve also as an auxiliary tool. Fig. l is a.transverse sectional view through a tire and Specification of LettersPatent.

Patented May 16, 1916.

Serial No. 873,155.

rim of the clencher type showing a portion of the body of the toolhaving a hooked tongue inserted to engage the head of the tire and theflange of the rim, in position for removing the tire therefrom. Fig. 5is a transverse sectional view similar to Fig. 4, but showing the hookedtongue inserted between the bead and rim in position for replacing thetire upon the rim. Fig. 6 is a slde elevation of a wheel and tireshowing the detachable extension applied as an auxiliary tool forraising the bead of the tire to facilitate the insertion of the hookedtongue of the body of the tool into position in engagement with the beadof the tire and run of the wheel preparatory to removing the tiretherefrom. Fig. 7 y is a side elevation of a wheel and tire showing thetool in position thereon for removing the tire, and the tire partiallyremoved, with the body of the tool engaging the ground at its lower end,the detachable extension inserted at its upper end and engaged with thehub of the wheel to anchor the tool against rotary movement with thewheel. Fig. 8 is a side elevation of a wheel and tire showing the toolin the same position as in Fig. 7 with the exception that the hookedtongue is engaged with the outer surface of the bead in position forreplacing the tire, the greater portion of which is shown upon the rim.Fig. 9 is a side elevation of a wire wheel and tire in which the body ofthe tool is shown in substantially the same position on the wheel as inFig. 8, but as there is no hub projection on this type of wheel forengagement with the detachable extension, said member is inserted at oneend into a transverse aperture in the shank of the tool and engaged atits opposite end with the ground in the manner of a leg or brace toanchor the tool against movementwhen rotating the wheel to remove orreplace the tire.

Referring to the drawings by the characters of reference indicating theseveral parts, 1 designates the body of the tool which is preferablyformed by casting, and which comprises a shank 2, having in its upperend a tapered socket 3 and a transverse aperture 4 extendingtherethrough, both of which may be formed by coring. Extending from thelower end of the shank 2 and off-set therewith upon one side is an armor leg 5 which terminates at its lower end in a laterally extending foot6 adapted to form a bearing for engagement with the ground or otherfixed support. The opposite side of the shank 2 is provided with alaterally diverging extension 7 terminating in a hooked tongue 8 whichis positioned thereon so as to stand at an incline to the plane of thebody of the tool with the hooked portion 9 extending upwardly andinwardly toward the shank 2 and with the tongue portion 10 depending atan incline to the offset'extension or leg 5 of said shank. (See Figs. 1and 2).

The detachable extension 11 for the body of the tool, as shown in Fig.3, is provided at one end with a right-angled bend forming a lateralprojection 12 which serves as a handle and also aifords a bearingsurface in the form of a foot for engagement with the ground whenemployed in a certain position with the body of the tool, and theopposite end of said member is squared and tapered as at 13 to fit intothe tapered socket 3 and also into the aperture 4 of the shank, as shownin Figs. 8 and 9. A notch 1a is formed in one side of the tapered end 13to serve as a detent for engagement with the flange 15 of the rim 16 ofthe wheel 17 when the tapered end is inserted between the bead 18 of thetire 19 and said flange 15, for the purpose of raising the bead topermit the insertion of the hooked tongue of the tool, as shown inFig. 1. By this arrangement the detachable extension 11 is made to serveas an auxiliary tool for use in connection with the body of the tool inthe initial operation of applying the tool to the rim and tire, as wellas providing additional leverage and anchorage for the body of the toolto facilitate the work in the further operation of removing or replacingthe tire, as will be more readily understood from the followingdescription of the operation of the device.

To remove a tire the wheel is first jacked up to clear the ground in theusual way, the inner air tube 20 being deflated, the operator insertsthe tapered end of the auxiliary tool 11 between the flange 15 of therim 16 and the bead 18 of the tire 19 so as to engage the notch 14: ofsaid tool with said flange, to form a fulcrum bearing upon which toswing the tool radially of the wheel, as shown in Fig. 6, whereby aportion of the bead will be raised and deflected out of the plane of therim, leaving an opening between said bead and flange. The hooked tongue8 of the body of the tool is then entered in the opening between thebead and flange with the tongue portion 10 engaging the back face of thetapered end 13 of the auxiliary tool, as shown in Fig. 6. In thisposition the inclination of the hooked tongue with respect to the bodyof the tool enables said tongue to be conveniently inserted while theofl-setting of the leg 5 affords clearance between the tool and tire topermit of a turning and swinging movement of said tool to further engagethe hooked portion 9 of said tongue with the innerface of the flange ofthe rim, and to finally position the tool radially of the wheel, asshown in Figs. 4 and 7. lVhen the tongue and body of the tool areattached and positioned in this manner, the auxiliary tool may bedisengaged from the bead and rim by withdrawing it, and may then beinserted at its tapered end into the tapered socket 3 1n the shank 2 ofthe tool where it may be held by hand to steady the body of the toolwith the foot 6 engaging the ground, or it may be securely retained inposition by placing the extension formed by the auxiliary tool incontact with the hub 21 of the wheel, as shown in Figs. 7 and 8.

Where the hub of the wheel does not project sufficiently to afford asuitable bearing as is the case with certain makes of automobile rearwheels, and wheels having wire spokes, the extension or auxiliary toolmay be inserted at its tapered end into the trans verse aperture 4. ofthe shank and placed with its handle end 12 in contact with the groundin the manner of a brace to support the body of the tool upon the groundin substantially the same position as though the extension were engagedwith the hub of the wheel. (See Fig. 9). The device thus attached andsupported is in position for the removal of the tire, which may now beaccomplished by rotating the wheel in a direction to force the lower endof the tool into contact with the ground, as indicated by arrows inFigs. 7 and 9, so as to anchor it against rotation with the wheel. Thiswill cause the hook 9 of the hooked tongue 8 to ride upon the perimeterof the flange of the rim and the depending inclined tongue 10 to followin engagement with the inner face of the bead of the tire in the mannerof a plow, raising said bead upon its inner inclined face and forcing itoutwardly from the flange of the rim progressively as the wheel isrotated,

(see Fig. 4:).

When the head at the outer side of the tire has been removed and it isdesired to dismount the tire case from the rim, the bead at the innerside may be removed by sliding it over to the outer flange of the rim,when it may be readily engaged by the auxiliary tool and forced over theflange in the ner.

To mount or replace a tire casing upon the rim, the tool is attached,supported and manipulated in substantially the same manner as describedfor removing the tire, with the exception that the outer face of theinclined depending tongue is engaged with the outer face of the bead(see Fig. 5), which is forced thereby over the flange of the rim andinto interlocking position therein by a sliding contact with theinclined face of said tongue as the wheel is rotated in the same usualman-.

direction as before described and as shown in Fig. 8.

It will be apparent from the foregoing that a device embodying thesefeatures of construction is adaptable for use upon tires and wheels ofvarious sizes as well as upon wheels of the hubless type; that it willbe comparatively light, strong and inexpensive to make and may beconveniently carried in the ordinary tool kit; that the single hookedtongue member will serve both purposes in removing and replacing thetire without necessitating the shifting or readjustment of the positionof the tool, and that by reason of the detachable two-piece constructionthe tool may be reduced in length and the two parts used cooperativelyin a convenient manner in gaining access to manipulate the tire andavoid interference with mud guards or other projections about the wheelsin the initial operation of positioning the tool, as well as beingextensible to afford a suitable bearing support with the ground or hubof the wheel to anchor the tool in position for the final operation ofremoving or replacing the tire. These features of utility contributematerially to lessen the time and labor usually involved, and render theaccomplishment of such operations a matter of comparative ease.

Having thus fully set forth my invention, what I claim as new, anddesire to secure by Letters Patent, is:

A tire-removing and replacing tool consisting of a shank having anoifset branch extending in substantially parallel relation with the axisthereof, a ground-engaging foot extending inwardly across the axis ofthe shank from the lower end of such branch, a second branch extendingfrom the lower end of the shank proper and oppositely to the first namedbranch, and a lug carried by the end of the said second branch andarranged diagonally with respect to the axis of the shank, the upper endof said lug being curved inwardly toward the shank and the lower end ofsaid lug being tapered from front to rear, the outer surface of the lugbeing concaved.

In testimony whereof, I sign this specification in the presence of twoWitnesses.

MILTON H. STEWART.

Witnesses l B. F. WHEELER, H. C. THOMAS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of latents, Washington, D. G.

